竖井式进出水口水力特性研究进展  

Progress in research of hydraulic characteristics of vertical pipe inlet-and-outlet

作　　者：高学平[1] 袁野[1] 朱洪涛[1] 刘殷竹 GAO Xueping;YUAN Ye;ZHU Hongtao;LIU Yinzhu(State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学水利工程智能建设与运维全国重点实验室,天津300072

出　　处：《水力发电学报》2024年第9期13-26,共14页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金项目(52179077)。

摘　　要：竖井式进出水口是抽水蓄能电站水道系统两端控制水流的常用进出水口型式之一。竖井式进出水口双向过流,水流在短距离内经历两次90°流向转变(水平-竖直-水平),流向变化剧烈,水力条件复杂,深入研究竖井式进出水口水力特性,进而优化其体型结构,对抽水蓄能电站设计及施工具有重要意义。首先,介绍竖井式进出水口应用背景及体型特点,分析竖井式进出水口水力特性存在的问题;其次,对竖井式进出水口孔口流量分配、拦污栅断面流速分布、漩涡和水头损失等方面研究进展进行总结;最后,归纳了竖井式进出水口水力特性研究方法,探讨了今后研究应聚焦的主要方向。A vertical pipe inlet-and-outlet is a common inlet-and-outlet type for controlling water flow at both ends of a pumped storage power station waterway system.It is a passage of bidirectional flows that undergoes two 90°turns(horizontal-vertical-horizontal)within a short distance.In such an inlet-an-outlet,flow direction changes drastically and its hydraulic conditions are complicated.For the design and construction of pumped storage power plants,it is of great significance to conduct an in-depth study of its hydraulic characteristics and to optimize its structure and shape.This paper first discusses the application background of the vertical pipe inlet-and-outlet and the characteristics of its channel shape,and examines the problems with its hydraulic characteristics.Then,we present a summary on the recent progress in the research on this device,the distribution of flow velocity in its trash rack section,the vortices and its head loss,etc.Finally,we sum up the research methods for its hydraulic characteristics,and suggest certain directions to focus on in the future research.

关 键 词：抽水蓄能电站 竖井式进出水口 水力特性 研究方法 

分 类 号：TV732.1[水利工程—水利水电工程]